Split type pressure regulating steel plateTechnical Field
The invention belongs to the field of medical instruments, and particularly relates to a split type pressure regulating steel plate.
Background
The method for fixing the bone fracture fixation steel plate and fixing the corresponding pressure regulating screw in the bone fracture fixation steel plate has been applied clinically for many years, and in the clinical treatment process, various methods are applied to the fixation of the bone fracture, wherein the steel plate is one of the most common methods, the traditional steel plate is used for fixing the steel plate on the bone through the corresponding pressure regulating screw, so that the steel plate and the bone are integrated, but the stress shielding effect at the later stage of fracture repair limits the mechanical stimulation of bone tissues, the proper stress stimulation of the fracture end cannot be given, particularly the comminuted fracture cannot be micro-moved, the defects of delayed healing, non-healing, slow bone mineralization speed, long bone carrying time and the like are overcome, and the popularization and application of the bone fracture fixation steel plate are limited. Therefore, designing a steel plate capable of adjusting the magnitude of the applied force to the bone, which is suitable for the fixing device of different fracture repair stages, is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide an integrated pressure regulating steel plate which has the advantages of simple structure, convenient operation, easy fixation and capability of stimulating axial stress of a fracture end and accelerating bone healing.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The split type pressure regulating steel plate comprises a steel plate body, a first pressure regulating device and a second pressure regulating device, wherein the first pressure regulating device is arranged on one side of the steel plate body, the second pressure regulating device is arranged on the other side of the steel plate body, the first pressure regulating device is connected with the second pressure regulating device through a traction rod, a pressure regulating nail hole is formed in the steel plate body, a bone screw is arranged in the pressure regulating nail hole, and the first pressure regulating device and the second pressure regulating device are used for regulating radial stress of the bone screw in the pressure regulating nail hole.
Further, the steel plate body is provided with a fixing nail hole, and bone screws are arranged in the fixing nail hole and the pressure regulating nail hole.
As a further optimization of the invention, the first pressure regulating device comprises a pressure regulating screw hole arranged on the steel plate body, a pressure regulating screw in the pressure regulating screw hole, a pressure regulating hole I communicated with the pressure regulating screw hole and a pressure regulating sleeve I, wherein a pressure regulating column I is arranged below the pressure regulating sleeve I and is positioned in the pressure regulating hole I, the pressure regulating sleeve I is connected with a pressure regulating device II through a traction rod, and the pressure regulating device I and the pressure regulating device II regulate pressure in one of the following modes:
① The tail part of the pressure regulating screw is sleeved with a special-shaped gasket, one end of the special-shaped gasket is abutted against the first pressure regulating column, and the axial stress of the second pressure regulating device along the steel plate body is regulated by changing the lengths of different special-shaped gaskets, so that the axial stress of the fracture end is regulated;
② The pressure regulating nail hole is a pressure regulating long hole formed by at least two communicated screw holes, a pressure regulating bolt is arranged in the pressure regulating long hole, a second nut is arranged on the pressure regulating bolt, and the axial stress of the second pressure regulating device along the steel plate body is regulated according to different positions of the pressure regulating bolt in the pressure regulating nail hole, so that the axial stress of the fracture end is regulated;
③ The pressure regulating screw is an eccentric shaft, and the axial stress of the pressure regulating device II along the steel plate body is regulated according to the contact position of the eccentric shaft and the pressure regulating column I, so that the axial stress of the fracture end is regulated;
④ The axial stress of the second pressure regulating device along the steel plate body is regulated by changing pressure regulating screws with different tail diameters, so that the axial stress of the fracture end is regulated;
⑤ The first pressure regulating hole is internally provided with a first guide post, and the axial stress of the pressure regulating device II along the steel plate body is regulated by replacing the first guide posts with different lengths, so that the axial stress of the fracture end is regulated;
⑥ The first pressure regulating hole is axially formed along the steel plate body, the jackscrew is in threaded connection with the steel plate body, the thickness of the steel plate at the first section of the pressure regulating hole is thickened, the first pressure regulating hole can protrude out of the upper surface of the steel plate body, the axial stress of the second pressure regulating device along the steel plate body is regulated by regulating the screwing depth of the jackscrew, and then the axial stress of the fracture end is regulated;
⑦ The steel plate body is provided with two side pressure regulating holes, a first guide post is arranged in the first pressure regulating hole, the side pressure regulating holes are long holes formed in two sides of the steel plate body and are axially formed along the steel plate body, the long holes are at least two screw holes communicated with each other, the steel plate body is provided with a sliding baffle, two ends of the sliding baffle are provided with screw holes, a sliding column is arranged in the middle of the sliding baffle and is abutted to the first guide post, the sliding baffle can slide in the first pressure regulating hole, a pressure regulating bolt and a nut fix the sliding baffle on the steel plate body through the screw holes, and radial stress of the pressure regulating screw is regulated at different positions in the side pressure regulating holes according to the pressure regulating bolt, so that axial stress of a fracture end is regulated;
the pressure regulating device II comprises a pressure regulating sleeve II and a guide post II which are connected with the traction rod, a pressure regulating column II is arranged below the pressure regulating sleeve II, one side of the pressure regulating column II is abutted to one end of the guide post II, the other end of the guide post II is abutted to a bone screw in a pressure regulating nail hole, or a communicated pressure regulating hole II is formed in one side of the pressure regulating nail hole, the guide post II is not installed in the pressure regulating hole II, and the pressure regulating column II is abutted to the bone screw in the pressure regulating nail hole.
As another form of the invention, the first pressure regulating device comprises a first pressure regulating sleeve positioned at one side of the steel plate body, a threaded hole is formed in the first pressure regulating sleeve and axially arranged along the steel plate body, a jackscrew is installed in the threaded hole, the bottom end of the jackscrew abuts against the steel plate body, a traction rod is arranged on the first pressure regulating sleeve, the second pressure regulating device comprises a second pressure regulating sleeve connected with the traction rod and a second pressure regulating hole communicated with the pressure regulating nail hole, a second pressure regulating column is arranged below the second pressure regulating sleeve and is positioned in the second pressure regulating hole, a second guide column is installed in the second pressure regulating hole, one end of the second guide column is abutted against a bone screw in the pressure regulating nail hole, and the other end of the second guide column is abutted against the second pressure regulating column.
As a further optimization of the invention, the steel plate body is provided with the sliding hole, the sliding hole is communicated with the second pressure regulating hole, the sliding plate is arranged in the sliding hole, the sliding plate is provided with the pressure regulating nail hole, one end of the second guide post is abutted against the sliding plate, the other end of the second guide post is abutted against the pressure regulating post, and the axial stress of the sliding plate along the steel plate body is regulated by changing the second guide posts with different lengths, so that the axial stress of the fracture end is regulated.
Further, the sliding hole is a special-shaped sliding hole, the opening of the upper surface of the steel plate body is larger than the opening of the lower surface, and the axial length of the sliding hole is larger than that of the sliding plate.
Further, the first pressure regulating device is connected with the second pressure regulating device through a traction rod, a traction hole is formed in the first pressure regulating sleeve, a threaded section is formed in the traction rod, one end of the traction rod penetrates out of the traction hole, the other end of the traction rod is fixedly arranged on the second pressure regulating sleeve through a fixing piece, the fixing piece is one of a first nut, an expanding part and a fixing clamp, when the first nut is one of the nuts, the threaded section is formed in the traction rod, a first nut is arranged on the threaded section, and the first nut is in threaded connection with the traction rod.
The sliding plate is provided with an anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are connected with the steel plate body in a sliding mode, the steel plate body is covered on the surface of the anti-falling plate, the steel plate body is in a strip shape, a strip shape or a full plate shape, the anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are connected with the steel plate body in a half-sleeve or full-sleeve mode, when the anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are in the half-sleeve mode, two ends of the anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are buckled on two sides of the steel plate body, the upper surface of the anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are provided with long slot holes, when the anti-falling plate, the pressure regulating sleeve I and the pressure regulating sleeve II are in the full-sleeve mode, the upper surface and the lower surface of the anti-falling plate, the long slot holes correspond to the pressure regulating nail holes of the sliding plate, and the radial size of the long slot holes is larger than the sizes of the pressure regulating nail holes.
Further, at least two anti-falling screws are arranged on the steel plate body and are in threaded connection with the steel plate body, and the tail parts of the anti-falling screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from falling off.
Further, the first elastic body and the second elastic body are springs and elastic capsules, and when the springs are springs, spring bases are arranged at two ends of the springs.
Further, traction grooves are formed in two sides of the steel plate body respectively, traction holes are formed in the first pressure regulating sleeve and the second pressure regulating sleeve respectively, the traction rod penetrates through the traction holes and is fixedly connected with the traction holes, and the traction rod is one of a metal rod and a cable.
The pressure regulating sleeve is characterized in that the pressure regulating sleeve is formed by integrating the pressure regulating sleeve I and the pressure regulating sleeve II, the pressure regulating sleeve is arranged in a half sleeve or a full sleeve mode according to the connection mode of the pressure regulating sleeve I and the steel plate body, when the pressure regulating sleeve is in the half sleeve mode, two ends of the pressure regulating sleeve are buckled on two sides of the steel plate body, long groove holes are formed in the upper surface of the pressure regulating sleeve, when the pressure regulating sleeve is in the full sleeve mode, long groove holes are formed in the upper surface and the lower surface of the pressure regulating sleeve, the long groove holes correspond to the pressure regulating nail holes of the sliding plate, and the radial size of the long groove holes is larger than the size of the pressure regulating nail holes.
Further, the pressure regulating nail hole, the first pressure regulating hole and the first fixed nail hole which are arranged on the steel plate body are in one of the following forms:
① One end of the steel plate body is provided with at least two pressure regulating nail holes and at least one pressure regulating hole I;
② The two ends of the steel plate body are provided with pressure regulating nail holes and pressure regulating holes I, and the pressure regulating nail holes I are symmetrically arranged on the steel plate body;
③ The steel plate body one end sets up to the fixed nail hole end, and the other end sets up to the pressure regulating nail hole end, and fixed nail hole one end is set up to the anatomical plate unanimous with human four limbs skeleton joint position anatomical form, and pressure regulating nail hole end sets up two at least pressure regulating nail holes and at least one pressure regulating hole one.
Further, the steel plate body is a straight steel plate or an arc steel plate with a certain radian consistent with the shape of a bone, the upper surface and the lower surface of the steel plate body are radially provided with cambered surfaces with a certain radian, the steel plate body is provided with at least one Kirschner pin hole for temporarily fixing the bone, and grooves can be formed in the lower surfaces of the two sides of the steel plate body and the anti-drop plate.
The invention has the advantages of easy fixation and convenient operation. The steel plate body is fixed on bones through the bone screws in the fixing nail holes, the distance between the bone screws in the pressure regulating nail holes and the bone screws in the fixing nail holes is adjusted in a micro-motion mode through the elastic pressure regulating device in the pressure regulating hole I, the purposes of regulating and controlling fracture end stress, stimulating organism tissues and forming new bones to achieve bone extension are achieved, the fracture end stress shielding is avoided, fracture healing is accelerated, and the wearing time of the steel plate is shortened.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic diagram of a second embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 5 is a schematic diagram of a third embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along the direction C-C in FIG. 5;
FIG. 7 is a schematic diagram of a fourth embodiment of the present invention;
FIG. 8 is a schematic view of a fifth embodiment of the present invention;
FIG. 9 is a schematic view of a sixth embodiment of the present invention;
FIG. 10 is a schematic view of another embodiment of the present invention;
FIG. 11 is a schematic view of an eighth embodiment of the present invention;
FIG. 12 is a cross-sectional view taken along the direction D-D in FIG. 11;
fig. 13 is a schematic structural view of a ninth embodiment of the present invention;
FIG. 14 is a schematic view of the structure of FIG. 13 at another angle;
fig. 15 is a schematic structural view of a tenth embodiment of the present invention;
FIG. 16 is a cross-sectional view taken along the direction E-E in FIG. 15;
Fig. 17 is a schematic structural view of an eleventh embodiment of the present invention;
FIG. 18 is a cross-sectional view taken along the direction F-F in FIG. 17;
fig. 19 is a schematic structural view of a twelfth embodiment of the present invention;
fig. 20 is a schematic structural view of a thirteenth embodiment of the present invention;
FIG. 21 is a schematic view of the structure of FIG. 20 at another angle;
FIG. 22 is a schematic view showing a structure of a retaining plate half-sleeve according to a thirteenth embodiment of the present invention;
FIG. 23 is a cross-sectional view taken along the direction G-G in FIG. 22;
FIG. 24 is a schematic view showing the structure of the anti-drop plate as a complete set in the thirteenth embodiment of the present invention;
FIG. 25 is a cross-sectional view taken in the direction H-H of FIG. 24;
fig. 26 is a schematic structural view of a fourteenth embodiment of the present invention;
Fig. 27 is a schematic view showing the structure of a fifteenth embodiment of the present invention;
FIG. 28 is a schematic view of an arc-shaped steel plate body according to the present invention;
fig. 29 is a schematic view of the structure of the first embodiment of the present invention;
FIG. 30 is a schematic view of the structure of FIG. 29 at another angle;
FIG. 31 is a schematic view of the structure of the first nut and the first pressure regulating sleeve mounted on the middle traction rod of the present invention;
FIG. 32 is a schematic view of the structure of the middle traction lever provided with an expanding part and a corresponding pressure regulating sleeve I;
FIG. 33 is a schematic view of the structure of the middle drawbar setting sleeve and corresponding pressure regulating sleeve I of the present invention;
FIG. 34 is a schematic view of the structure of the proximal humerus pressure regulating steel plate of the present invention;
FIG. 35 is a schematic view of the structure of the distal fibula lateral pressure regulating steel plate of the present invention;
FIG. 36 is a schematic view of the construction of the medial humeral distal pressure adjustment plate of the present invention;
FIG. 37 is a schematic view of the structure of the lateral femoral distal pressure regulating steel plate of the present invention;
FIG. 38 is a schematic view of the medial tibial distal pressure regulating plate of the present invention;
FIG. 39 is a schematic view of the construction of the lateral humeral distal pressure regulating steel plate of the present invention;
FIG. 40 is a schematic view of the structure of the lateral femoral proximal pressure regulating steel plate of the present invention;
FIG. 41 is a schematic view of the structure of the anterolateral tibial distal pressure regulating plate of the present invention;
FIG. 42 is a schematic view of the distal radius palmar pressure regulating steel plate according to the present invention;
FIG. 43 is a schematic view of the medial tibial proximal side pressure regulating steel plate of the present invention;
FIG. 44 is a schematic view of the structure of the phalangeal T-shaped plate pressure regulating steel plate of the present invention;
FIG. 45 is a schematic view of the structure of the distal radius dorsal pressure regulating steel plate of the present invention;
FIG. 46 is a schematic view of the structure of the lateral tibial proximal pressure regulating steel plate of the present invention;
in the figure, a first pressure regulating sleeve, a second fixed nail hole, a 3-traction rod, a 4-steel plate body, a 5-pressure regulating nail hole, a second pressure regulating sleeve, a first 7-pressure regulating hole, a first 8-nut, a first 9-pressure regulating column, a 10-pressure regulating screw hole, a 11-pressure regulating screw, a 12-traction groove, a 13-pressure regulating bolt, a second 14-nut, a 15-special-shaped gasket, a 16-jackscrew, a 17-side pressure regulating hole, a 18-sliding baffle, a second 19-pressure regulating hole, a 20-eccentric shaft, a 21-anti-falling plate, a 22-guide groove, a 23-sliding plate, a 24-upper groove hole, a 25-lower groove hole, a 26-anti-falling screw, a 27-guide column, a second 28-guide column, a 29-expansion part, a 30-Kirschner pin hole, a 31-pressure regulating column, a 32-fixing clamp, a 33-sliding hole and a 34-traction hole are shown.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In a first embodiment of the present invention, as shown in fig. 1 and 2, a split-type pressure-regulating steel plate includes a steel plate body 4, a first pressure-regulating device and a second pressure-regulating device, where the first pressure-regulating device is disposed on one side of the steel plate body 4, the second pressure-regulating device is disposed on the other side of the steel plate body, the first pressure-regulating device is connected with the second pressure-regulating device through a traction rod 3, a pressure-regulating nail hole 5 is disposed on the steel plate body 4, a bone screw is installed in the pressure-regulating nail hole 5, and the first pressure-regulating device and the second pressure-regulating device are used for adjusting radial stress of the bone screw in the pressure-regulating nail hole 5. The steel plate body 4 is provided with a fixing nail hole 2, and bone screws are arranged in the fixing nail hole 2 and the pressure regulating nail hole 5.
The first pressure regulating device comprises a pressure regulating screw hole 10 arranged on the steel plate body 4, a pressure regulating screw 11 in the pressure regulating screw hole 10, a first pressure regulating hole 7 communicated with the pressure regulating screw hole 10 and a first pressure regulating sleeve 1, a first pressure regulating column 9 is arranged below the first pressure regulating sleeve 1, the first pressure regulating column 9 is positioned in the first pressure regulating hole 7, the first pressure regulating sleeve 1 is connected with a second pressure regulating device through a traction rod 3, the second pressure regulating device comprises a second pressure regulating sleeve 6 connected with the traction rod 3, a second pressure regulating column 31 is arranged below the second pressure regulating sleeve 6, one end of the second guide column 28 is abutted against a bone screw in the pressure regulating screw hole 5, and the other end of the second guide column is abutted against the second pressure regulating column 31. The tail of the pressure regulating screw 11 is sleeved with a special-shaped gasket 15, one end of the special-shaped gasket 15 is abutted to the first pressure regulating column 9, and the axial stress of the fracture end is regulated by changing the axial stress of the second pressure regulating device of the different special-shaped gaskets 15 along the steel plate body 4.
As shown in fig. 3 and fig. 4, the second embodiment of the present invention is different from the first embodiment in that the pressure-adjusting screw hole 10 is a pressure-adjusting long hole formed by two connected screw holes, the pressure-adjusting long hole is internally provided with a pressure-adjusting bolt 13, the pressure-adjusting bolt 13 is provided with a second nut 14, and the axial stress of the pressure-adjusting device along the steel plate body 4 is adjusted according to different positions of the pressure-adjusting bolt 13 in the pressure-adjusting screw hole 10, thereby adjusting the axial stress of the fracture end.
In the third embodiment of the present invention, as shown in fig. 5 and 6, the difference between the first embodiment and the second embodiment is that the pressure adjusting screw 11 is replaced by the eccentric shaft 20, and the axial stress of the second pressure adjusting device along the steel plate body 4 is adjusted according to the contact position between the eccentric shaft 20 and the first pressure adjusting column 9, so as to adjust the axial stress of the fracture end.
The fourth embodiment of the present invention, as shown in fig. 7, is different from the first embodiment in that the axial stress of the second pressure adjusting device along the steel plate body 4 is adjusted by replacing the pressure adjusting screw 11 with a different tail diameter, thereby adjusting the axial stress of the fracture end.
In the fifth embodiment of the present invention, as shown in fig. 8, the difference between the fifth embodiment and the first embodiment is that the first guide post 27 is disposed in the first pressure regulating hole 7, and the axial stress of the second pressure regulating device along the steel plate body 4 is regulated by replacing the first guide post 27 with a different length, so as to regulate the axial stress of the fracture end.
The sixth embodiment of the present invention is different from the fifth embodiment in that a plurality of second pressure regulating devices are disposed on the steel plate body 4, and the number of second pressure regulating sleeves 6 disposed on the traction rod 3 may be plural, as shown in fig. 9, three second pressure regulating sleeves 6 are disposed on the steel plate body 4, and each second pressure regulating sleeve 6 is located in a corresponding pressure regulating nail hole 5.
In the seventh embodiment of the present invention, the first pressure regulating device provided on the steel plate body 4 may be located at any fixing nail hole 2 on the steel plate body 4, and as shown in fig. 10, the first pressure regulating device is located at the third fixing nail hole 2.
The eighth embodiment of the present invention, as shown in fig. 11 and 12, is different from the sixth embodiment in that the first pressure adjusting hole 7 is axially disposed along the steel plate body 4, the jackscrew 16 is screwed with the steel plate body 4, the thickness of the steel plate at the 7 section of the first pressure adjusting hole is increased, the first pressure adjusting hole 7 can protrude out of the upper surface of the steel plate body 4, and the axial stress of the second pressure adjusting device along the steel plate body 4 is adjusted by adjusting the screwing depth of the jackscrew 16, so as to adjust the axial stress of the fracture end.
As shown in fig. 13 and 14, the ninth embodiment of the present invention is different from the eighth embodiment in that two side pressure regulating holes 17 are provided on the steel plate body 4, a guide post one 27 is installed in the first pressure regulating hole 7, the side pressure regulating holes 17 are elongated holes provided on two sides of the steel plate body 4 and are axially provided along the steel plate body 4, the elongated holes are at least two screw holes that are communicated with each other, a sliding baffle 18 is provided on the steel plate body 4, screw holes are provided at two ends of the sliding baffle 18, a sliding column is provided in the middle of the sliding baffle 18, the sliding column abuts against the guide post one 27 and can slide in the first pressure regulating hole 7, the sliding baffle 18 is fixed on the steel plate body 4 by the screw holes by the pressure regulating bolt 13 and the second nut 14, and the radial stress of the bone screw is regulated at different positions in the side pressure regulating holes 17 according to the pressure regulating bolt 13, and the axial stress of the fracture end is regulated.
As shown in fig. 15 and 16, the tenth embodiment of the present invention is different from the sixth embodiment in that the second pressure regulating sleeve 6 is a half sleeve, two ends of the second pressure regulating sleeve are buckled on two sides of the steel plate body 4, an upper slot 24 formed by a long slot is provided on the upper surface, the upper slot 24 corresponds to the pressure regulating nail hole 5, and the radial dimension of the upper slot 24 is larger than the dimension of the pressure regulating nail hole 5.
As shown in fig. 17 and 18, the eleventh embodiment of the present invention is different from the tenth embodiment in that the second pressure regulating sleeve 6 is a complete sleeve, and is slidably connected to the steel plate body 4, and upper slots 24 formed by long slots are provided on the upper surface and the lower surface of the second pressure regulating sleeve, and the upper slots 24 and the lower slots 25 correspond to the pressure regulating nail holes 5, and the radial dimension of the second pressure regulating sleeve is greater than the dimension of the pressure regulating nail holes 5.
The twelfth embodiment of the present invention, as shown in fig. 19, is different from the sixth embodiment in that the steel plate body 4 is provided with a sliding hole 33, the sliding hole 33 is communicated with the second pressure regulating hole 19, the sliding plate 23 is installed in the sliding hole 33, the sliding plate 23 is provided with the pressure regulating nail hole 5, one end of the second guide post 28 abuts against the sliding plate 23, the other end abuts against the second pressure regulating post 31, the axial stress of the sliding plate 23 along the steel plate body 4 is regulated by replacing the second guide post 28 with a different length, and then the axial stress of the fracture end is regulated, the sliding hole 33 is a special-shaped sliding hole 33, the opening of the upper surface of the steel plate body 4 is larger than the opening of the lower surface, and the axial length of the sliding hole 33 is larger than the axial length of the sliding plate 23. The steel plate body 4 is provided with at least two anti-falling screws 26, the anti-falling screws 26 are in threaded connection with the steel plate body 4, and the tail parts of the anti-falling screws 26 are pressed on the upper surface of the sliding plate 23 to prevent the sliding plate 23 from falling off.
A thirteenth embodiment of the present invention, as shown in fig. 20 and 21, is different from the twelfth embodiment in that the setting of the anti-drop screw 26 on the sliding plate 23 is replaced by the anti-drop plate 21, the anti-drop plate 21 is slidably connected to the steel plate body 4, the steel plate body 4 is covered on the surface thereof by a strip shape and a space strip shape, the anti-drop plate 21 is arranged in a half-sleeve or full-sleeve shape according to the connection form with the steel plate body 4, as shown in fig. 22 and 23, the anti-drop plate 21 is arranged in a half-sleeve shape, the upper surface thereof is provided with an upper slot 24 formed by a long slot hole, the upper slot 24 corresponds to the pressure regulating nail hole 5, the radial dimension is larger than the dimension of the pressure regulating nail hole 5, the steel plate body 4 is provided with a guide slot 22 on the lower surface thereof, the anti-drop plate 21 is buckled on the steel plate body 4 and slides along the guide slot 22, the anti-drop plate 21 is arranged in a full-sleeve shape, as shown in fig. 24 and 25, the upper slot 24 and the lower slot 25 are both correspond to the pressure regulating nail hole 5, and the radial dimension is larger than the pressure regulating nail hole 5.
As shown in fig. 26, the fourteenth embodiment of the present invention is different from the first embodiment in that the first pressure regulating sleeve 1 and the second pressure regulating sleeve 6 are integrally formed, and are configured as a half sleeve or a full sleeve according to the connection form with the steel plate body 4, two ends of the pressure regulating sleeve are buckled on two sides of the steel plate body 4, an upper slot hole 24 formed by a long slot hole is formed on the upper surface of the pressure regulating sleeve, the upper slot hole 24 corresponds to the pressure regulating nail hole 5, and the radial dimension of the long slot hole is larger than the dimension of the pressure regulating nail hole 5.
As shown in fig. 28, the fifteenth embodiment of the present invention is different from the twelfth embodiment in that the pressure adjusting means is changed in the form of pressure adjustment, the pressure adjusting screw 11 is replaced with the eccentric shaft 20, and the eccentric shaft 20 is directly abutted against the pressure adjusting column 27.
In the above embodiment, as shown in fig. 31, 32 and 33, the first pressure regulating device is connected with the second pressure regulating device through a traction rod 3, a traction hole is formed in the first pressure regulating sleeve 1, a threaded section is formed in the traction rod 3, one end of the traction rod 3 penetrates out of the traction hole, the other end of the traction rod 3 is fixedly mounted on the second pressure regulating sleeve 6 through a fixing piece, and the fixing piece is one of a first nut 8, an expansion portion 29 or a fixing clamp 32. Traction grooves 12 are respectively formed in two sides of the steel plate body 4, traction holes 34 are respectively formed in the first pressure regulating sleeve 1 and the second pressure regulating sleeve 6, the traction rod 3 penetrates through the traction holes 34 and is fixedly connected with the traction holes, and the traction rod 3 is one of a metal rod or a cable. When the fixing piece is the first nut 8, the first nut 8 is arranged on the traction rod 3, the first nut 8 is arranged on the threaded section, the first nut 8 is in threaded connection with the traction rod 3, the traction hole 34 is opened or closed, and when the fixing piece expands 29 or one of the fixing clips 32, the traction hole 34 is opened.
In addition, in the above embodiments, the form of the steel plate body may be set to various forms, as shown in fig. 28 and 29, the upper surface and the lower surface of the steel plate body 4 are radially set to have arc surfaces with a certain radian, and the lower surfaces of both sides of the steel plate body 4 and the anti-drop plate 21 may also be set with grooves for reducing the contact area with the skin. As shown in fig. 30, the steel plate body 4 is provided with a k-wire hole 30, and the k-wire hole 30 is used for temporarily fixing bones. As shown in fig. 34 to 46, one end of the steel plate body 4 may be configured as an anatomic steel plate having a curvature corresponding to the anatomic shape of the human skeleton. Such as a proximal humerus pressure regulating steel plate, a distal fibula lateral pressure regulating steel plate, a distal humerus medial pressure regulating steel plate, a distal femur lateral pressure regulating steel plate, a distal tibia medial pressure regulating steel plate, a distal humerus lateral pressure regulating steel plate, a proximal femur lateral pressure regulating steel plate, a distal tibia anterolateral pressure regulating steel plate, a distal radius palmar pressure regulating steel plate, a proximal tibia medial pressure regulating steel plate, a phalangeal T-shaped pressure regulating steel plate, a distal radius dorsal pressure regulating steel plate, a proximal tibia lateral pressure regulating steel plate, and the like.
As another form of the present invention, the pressure regulating nail hole 5, the pressure regulating hole 7 and the fixing nail hole 2 provided on the steel plate body 4 have one of the following forms:
① One end of the steel plate body 4 is provided with at least two pressure regulating nail holes 5 and at least one pressure regulating hole I7;
② The two ends of the steel plate body 4 are provided with pressure regulating nail holes 5 and pressure regulating holes 7, and the pressure regulating nail holes 5 and the pressure regulating holes 7 are symmetrically arranged on the steel plate body 4;
③ One end of the steel plate body 4 is arranged to be a fixed nail hole 2 end, the other end of the steel plate body is arranged to be a pressure regulating nail hole 5 end, one end of the fixed nail hole 2 is arranged to be an anatomical plate consistent with anatomical form of a joint part of a limb of a human body, and the pressure regulating nail hole 5 end is provided with at least two pressure regulating nail holes 5 and at least one pressure regulating hole 7.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the embodiments of the present invention, for example, in the sixth embodiment, the form of the pressure regulating device is replaced by the form of the third embodiment, the form of the fifth embodiment, the fixed form of the cover plate and the pressure regulating device, or the form of the cover plate is changed in the embodiment with the cover plate, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.